直升机的英文是"helicopter"，它的来源是希腊语的"helix"和"pteron"，分别意思是"螺旋"和"翼"。例如：

The helicopter hovered above the traffic jam, providing a bird's-eye view. (直升机在交通堵塞上空盘旋，提供俯瞰全景。)

The rescue team arrived by helicopter to save the stranded hikers. (救援队以直升机的方式抵达，救助被困的徒步旅行者。)

The military helicopter flew low over the battlefield, looking for targets. (军用直升机在战场上空低空飞行，寻找目标。)